Martin Hannett (former North Manchester, Lancashire, England[1] 31 May 1948[2][3] – 18 April 1991), sometimes credited as Martin Zero, was a record producer who helped develop Joy Division and was an original partner in Factory Records with Tony Wilson. Hannett's trademark sound, most apparent on Joy Division's debut album Unknown Pleasures and its follow-up, Closer, is sparse and eerie, complementing frontman Ian Curtis' baritone vocals.